How legitimate of a player do you have to be? Is it like improv or jamming out or is there something specific you'd like to be played..? I'm thinking of bringing my saxophone but I'm also trying to be realistic about flying across the country.

I am here! I was having a hard time logging in again. Whoops. The project I'm trying to organize is going to involve synchronizing everybody to each other to play a piece so that location won't be important. For instance, the bass will be playing a quarter mile from the brass, which will be a short distance from the string(s), etc. I have plans to synchronize everyone through headphones so that you will hear the entire piece in your ears, even though you'll only be playing your own part.

The effect will be that people might hear only part of the piece at one moment, and then another part, then several parts together. I think people will congregate as they start to get it. When everybody comes together, the effect will be amazing as individual parts start to make sense. I know that doppler will be a factor, but I don't think it will really matter as the keys will mostly match, and nobody will be that far from each other (no more than a sound-second away).